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FACOLTA ARCHITETTURA E SOCIETA DIPARTIMENTO BEST Building Environment Science & Technology Convegno SIEV Sistemi di valutazione per le nuove pianificazioni Venezia 22 Novembre 2008 A. Oppio M. Ghellere A. Pandolfi Un approccio multidimensionale e partecipato alla valutazione del progetto : il modello SBTool The SBTool Model: selection and weights assignment to the criteria The selection and the weights assignment is committed to a third subject (indipendent) in order to give transparency to the evaluation process Weights assignment is carried out in 2 different ways: ISSUES, CATEGORIES : weights go from 1, that represents a low importance, to 5, except for issues and categories considered Mandatory. In these cases must be assigned weights higher than 3. The default weighting system gives more importance to the environmental issues (Energy and Resources consumption, Environmental Loadings and Indoor Environmental Quality) CRITERIA : a score from 1 to 3 is assigned to each criterion, referring to the extent (global or regional; urban or neighborhood; building or site), the intensity (strong or direct; moderate or indirect; weak) and the duration (>50 years; >10 years; <10 years ) of potential effects on the environment. The SBTool Model Introduction The SBTool Model Critical Review of SBTool Addressing SBTool to MCDA Conclusions A Multidimensional and Participatory Approach for Green Buildings Assessment A.Oppio S.Mattia A.Panfolfi M.Ghellere

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FACOLTA ARCHITETTURA E SOCIETA DIPARTIMENTO BEST Building Environment Science & Technology Convegno SIEV Sistemi di valutazione per le nuove pianificazioni Venezia 22 Novembre 2008 A. Oppio M. Ghellere A. Pandolfi Un approccio multidimensionale e partecipato alla valutazione del progetto : il modello SBTool Critical review of selection and weights assignment to the criteria Critical Review of SBTool STRENGHTSWEAKNESSES Involvement of experts Only the third subject has the task to assign the weights Use of both quantitative and qualitative indicators Weights of criteria dont consider the socio-economic features of the context Choice of criteria linked to the uses of building and the different phases of life cycle Stakeholders are not involved both in the choice and in the weights assignment of the criteria Impacts of criteria on the contextReasons of selection and weights assigment of the criteria are not explicited Introduction The SBTool Model Critical Review of SBTool Addressing SBTool to MCDA Conclusions A Multidimensional and Participatory Approach for Green Buildings Assessment A.Oppio S.Mattia A.Panfolfi M.Ghellere

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FACOLTA ARCHITETTURA E SOCIETA DIPARTIMENTO BEST Building Environment Science & Technology Convegno SIEV Sistemi di valutazione per le nuove pianificazioni Venezia 22 Novembre 2008 A. Oppio M. Ghellere A. Pandolfi Un approccio multidimensionale e partecipato alla valutazione del progetto : il modello SBTool Development of SBTool GENERAL GOALS To assess social and economic dimension of sustainability beside the environmental one To open the decision making process to a broader number of subjects by the active involvement in the evaluation process of: Decisional Stakeholder (DS) : subject committed to take final decisions Non Decisional Stakeholder (NDS) : holders of interest without any decisional power on project/plan To find a balance between subjective aspects (preferences) and objective aspects (data about the context: environmental, social and economic impacts) Addressing SBTool to MCDA To solve main weaknesses of the software Introduction The SBTool Model Critical Review of SBTool Addressing SBTool to MCDA Conclusions A Multidimensional and Participatory Approach for Green Buildings Assessment A.Oppio S.Mattia A.Panfolfi M.Ghellere

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FACOLTA ARCHITETTURA E SOCIETA DIPARTIMENTO BEST Building Environment Science & Technology Convegno SIEV Sistemi di valutazione per le nuove pianificazioni Venezia 22 Novembre 2008 A. Oppio M. Ghellere A. Pandolfi Un approccio multidimensionale e partecipato alla valutazione del progetto : il modello SBTool Results and further developments The process suggested to solve the current criticisms of SBTool is coherent with the purposes highlighted in the critical analysis of the evaluation model Quite attention has been paid to the integration between multicriteria analysis and participation methods, in order to strengthen the iterative and interactive nature of the appraisal process The final decisions are assumed consciously by the actors involved in the decision-making process for the opportunity of verifying the impacts of their choices according to the available information and their expectations into a transparent evaluation process The implemented tool could be considered as a kind of social decisional multicriteria analysis since it makes explicit, rational and efficient the selection between multiple and/or conflicting goals, contributing to improve the transparency and to strengthen the legitimacy of decisions taken Conclusions Introduction The SBTool Model Critical Review of SBTool Addressing SBTool to MCDA Conclusions A Multidimensional and Participatory Approach for Green Buildings Assessment A.Oppio S.Mattia A.Panfolfi M.Ghellere